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Table of Contents

Molbank, Volume 2009, Issue 3 (September 2009), M602-M622

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	M602 Renata Everett, Jillian Hamilton and Christopher Abelt Short Note: Preparation of 5-Bromo-2-naphthol: The Use of a Sulfonic Acid as a Protecting and Activating Group Molbank 2009, 2009(3), M602; doi:10.3390/M602 Received: 2 June 2009 / Accepted: 25 June 2009 / Published: 29 June 2009 Show/Hide Abstract | Download PDF Full-text (174 KB) |  Abstract: The preparation of 5-bromo-2-naphthol (4) in three steps from 5-amino-2-naphthol (1) is described. A sulfonic acid group is introduced at the 1-position as an activating and protecting group for the Sandmeyer reaction. The sulfonate group allows for the use of only water and sulfuric acid as solvents. The sulfonic acid is introduced with three equivalents of sulfuric acid, and it is removed in 20% aq. sulfuric acid.
	M603 Wolfgang Holzer, Changbin Guo and Karin Schalle Short Note: 3-Methyl-1-phenyl-1H-pyrazol-5-yl 2-Bromo-3-furan-carboxylate Molbank 2009, 2009(3), M603; doi:10.3390/M603 Received: 29 May 2009 / Accepted: 1 July 2009 / Published: 3 July 2009 Show/Hide Abstract | Download PDF Full-text (207 KB) |  Abstract: The reaction of 3-methyl-1-phenyl-2-pyrazolin-5-one and 2-bromo-3-furoyl chloride in the presence of Ca(OH)2 in 1,4-dioxane gave the title compound. The latter was also obtained in much higher yield upon reaction of the starting materials in the system dichloromethane / triethylamine. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented.
	M604 Nosratollah Mahmoodi, Manuchehr Mamaghani, Ali Ghanadzadeh, Majid Arvand and Mostafa Fesanghari Short Note: Synthesis of (E)-2,4-Dinitro-N-((2E,4E)-4-phenyl-5-(pyrrolidin-1-yl)penta-2,4-dienylidene)aniline Molbank 2009, 2009(3), M604; doi:10.3390/M604 Received: 29 April 2009 / Accepted: 6 July 2009 / Published: 7 July 2009 Show/Hide Abstract | Download PDF Full-text (81 KB) |  Abstract: (E)-2,4-Dinitro-N-((2E,4E)-4-phenyl-5-(pyrrolidin-1-yl)penta-2,4-dienylidene) aniline dye was prepared in one pot by reaction of premade N-2,4-dinitrophenyl-3-phenylpyridinium chloride (DNPPC) and pyrrolidine in absolute MeOH.
	M605 Changbin Guo and Wolfgang Holzer Short Note: 4,4’-[(2-Chlorophenyl)methylene]bis[1-phenyl-3-(trifluoromethyl)-1H-pyrazol-5-ol] Molbank 2009, 2009(3), M605; doi:10.3390/M605 Received: 3 July 2009 / Accepted: 14 July 2009 / Published: 16 July 2009 Show/Hide Abstract | Download PDF Full-text (157 KB) |  Abstract: The reaction of 1-phenyl-3-trifluoromethyl-2-pyrazolin-5-one and 2-chlorobenzaldehyde leads to the title compound, which results from addition of a second pyrazolone unit to the primarily formed 1:1 condensation product. Detailed spectroscopic data (1H NMR, 13C NMR, 19F NMR, IR, MS) are presented.
	M606 Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong and Lay-Khoon Ong Short Note: Synthesis of a New Heterocycle with Liquid Crystal Properties: 2-(3-Methoxy-4-hexadecanoyloxyphenyl)benzothiazole Molbank 2009, 2009(3), M606; doi:10.3390/M606 Received: 6 June 2009 / Accepted: 15 June 2009 / Published: 21 July 2009 Show/Hide Abstract | Download PDF Full-text (29 KB) |  Abstract: A new heterocycle 2-(3-methoxy-4-hexadecanoyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented.
	M607 Hari N. Pati, Bijay K. Mishra and Vijay S. Satam Short Note: Synthesis of 2-[4-(4-Chlorophenyl)piperazin-1-yl]-2-methylpropanoic Acid Ethyl Ester Molbank 2009, 2009(3), M607; doi:10.3390/M607 Received: 17 May 2009 / Accepted: 30 June 2009 / Published: 27 July 2009 Show/Hide Abstract | Download PDF Full-text (128 KB) |  Abstract: The title compound was synthesized by N-alkylation of 4-(4-chlorophenyl)piperazine with ethyl 2-bromo-2-methylpropanoate and its IR, 1H NMR, 13C NMR and Mass spectroscopic data are reported.
	M608 Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Jun-Kit Beh and Lay-Khoon Ong Short Note: Synthesis of a New Liquid Crystal, 3-Hydroxy-4-{[(6-methoxy-1,3-benzothiazol-2-yl)imino]methyl}phenyl Palmitate Molbank 2009, 2009(3), M608; doi:10.3390/M608 Received: 18 June 2009 / Accepted: 14 July 2009 / Published: 30 July 2009 Show/Hide Abstract | Download PDF Full-text (51 KB) |  Abstract: A new Schiff base ester comprising of heterocyclic moiety, 3-hydroxy-4-{[(6-methoxy-1,3-benzothiazol-2-yl)imino]methyl}phenyl palmitate was synthesized and its IR, 1H NMR, 13C NMR, elemental analysis and MS spectroscopic data are presented.
	M609 Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Teck-Leong Lee and Yasodha Sivasothy Short Note: Synthesis of 2-(4-Propyloxyphenyl)benzothiazole Molbank 2009, 2009(3), M609; doi:10.3390/M609 Received: 26 June 2009 / Accepted: 13 July 2009 / Published: 30 July 2009 Show/Hide Abstract | Download PDF Full-text (87 KB) |  Abstract: A new 2-(4-propyloxyphenyl)benzothiazole was synthesized and its IR, 1H and 13C NMR and MS spectroscopic data are presented.
	M610 Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Teck-Leong Lee and Yasodha Sivasothy Short Note: 2-(4-Heptyloxyphenyl)benzothiazole Molbank 2009, 2009(3), M610; doi:10.3390/M610 Received: 26 June 2009 / Accepted: 14 July 2009 / Published: 30 July 2009 Show/Hide Abstract | Download PDF Full-text (87 KB) |  Abstract: 2-(4-Heptyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR and MS spectroscopic data are presented.
	M611 Sie Tiong Ha, Teck Ming Koh, Siew Teng Ong, Teck Leong Lee and Yasodha Sivasothy Short Note: 2-(4-Pentyloxyphenyl)benzothiazole Molbank 2009, 2009(3), M611; doi:10.3390/M611 Received: 26 June 2009 / Accepted: 3 August 2009 / Published: 4 August 2009 Show/Hide Abstract | Download PDF Full-text (30 KB) |  Abstract: 2-(4-Pentyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR and MS spectroscopic data are presented.
	M612 David Díaz Díaz and Víctor S. Martín Short Note: Synthesis of Bis (1-Methyl-2-octynyl) Ether Molbank 2009, 2009(3), M612; doi:10.3390/M612 Received: 18 July 2009 / Accepted: 4 August 2009 / Published: 5 August 2009 Show/Hide Abstract | Download PDF Full-text (225 KB) |  Abstract: The synthesis of bis (1-methyl-2-octynyl) ether using two secondary alcohols under Nicholas reaction conditions is reported. The reaction is possible due to a catalytic participation of the Lewis acid when the nucleophilic alcohol is protected as a THPO-ether.
	M613 Balapragalathan Thappali Jothikrishnan and Suban Syed Shafi Short Note: Synthesis of a 2-Furylpyrazoline Derivative Using Microwave Irradiation Molbank 2009, 2009(3), M613; doi:10.3390/M613 Received: 10 May 2009 / Accepted: 14 July 2009 / Published: 10 August 2009 Show/Hide Abstract | Download PDF Full-text (215 KB) |  Abstract: A simple method for the synthesis of pyrazoline derivative containing furan moiety was developed. Thus, 5-(6-bromo-1,3-benzodioxol-5-yl)-3-(2-furyl)-1-(3-methyl-phenyl)-4,5-dihydro-1H-pyrazole was synthesized using microwave irradiation and it was characterized by NMR, IR, and LCMS.
	M614 Pramod Singh, Jagmohan S. Negi, Geeta Joshi Nee Pant, Mohan S. M. Rawat and Asha Budakoti Short Note: Synthesis and Characterization of a Novel 2-Pyrazoline Molbank 2009, 2009(3), M614; doi:10.3390/M614 Received: 24 February 2009 / Accepted: 11 May 2009 / Published: 10 August 2009 Show/Hide Abstract | Download PDF Full-text (188 KB) |  Abstract: Reaction of dibenzalacetone with hydrazine hydrate and formic acid yielded a novel 2-pyrazoline 1, characterized by ESI-MS, FT-IR, UV, 1HNMR and 13CNMR data and microanalysis.
	M615 Gricela Lobo, Jaime Charris, Margaret Valderrama and Antonieta Taddei Short Note: 4,6-Diamino-5-[4-(dimethylamino)benzylidene]pyrimidin-2(5H)- one Molbank 2009, 2009(3), M615; doi:10.3390/M615 Received: 14 August 2009 / Accepted: 26 August 2009 / Published: 31 August 2009 Show/Hide Abstract | Download PDF Full-text (135 KB) |  Abstract: A new compound, 4,6-diamino-5-[4-(dimethylamino)benzylidene]pyrimidin-2(5H)-one, was synthesized and its IR, 1H NMR and 13C NMR and MS spectroscopic data are presented.
	M616 Pranab Ghosh, Antara Sarkar and Jayanta Das Short Note: Mercuric(II) Acetate Oxidation of Steroidal Exocyclic α,β-Unsaturated Ketone: Transformation into a Cyclic Ether Molbank 2009, 2009(3), M616; doi:10.3390/M616 Received: 22 June 2009 / Accepted: 3 August 2009 / Published: 1 September 2009 Show/Hide Abstract | Download PDF Full-text (105 KB) |  Abstract: 16-Dehydropregnenolone acetate (16-DPA) (1), an exocyclic α,β-conjugated ketone having a steroidal skeleton, when treated with mercuric(II) acetate in acetic acid furnished a single compound identified as (2). The structure of compound (2) has been elucidated on the basis of spectral data analysis (IR, NMR and MS).
	M617 Samiappan Sathish Kumar, Helen P. Kavitha and Bathey R. Venkatraman Short Note: Synthesis of 3-Methyl-1-morpholin-4-ylmethyl-2,6-diphenylpiperidin-4-one Molbank 2009, 2009(3), M617; doi:10.3390/M617 Received: 10 July 2009 / Accepted: 28 August 2009 / Published: 10 September 2009 Show/Hide Abstract | Download PDF Full-text (29 KB) |  Abstract: This paper describes the synthesis of 3-methyl-1-morpholin-4-ylmethyl-2,6-diphenylpiperidin-4-one from 3-methyl-2,6-diphenylpiperidin-4-one. The synthesized compound was characterized by FT-IR, 1H NMR, EI-MS and elemental analysis.
	M618 Suresh Kumar, Sandhya Bawa and Sushma Drabu Short Note: N-[(2-Chloro-6-methylquinolin-3-yl)methyl]aniline Molbank 2009, 2009(3), M618; doi:10.3390/M618 Received: 27 July 2009 / Accepted: 26 August 2009 / Published: 14 September 2009 Show/Hide Abstract | Download PDF Full-text (87 KB) |  Abstract: Quinolinyl amines are important organic compounds which possess a variety of pharmacological activities such as antimalarial, antifungal, hypotensive and antidepressant activity.
	M619 Helmut Spreitzer and Christiane Puschmann Short Note: Regioselective Alkylation of an Oxonaphthalene-Annelated Pyrrol System Molbank 2009, 2009(3), M619; doi:10.3390/M619 Received: 7 September 2009; in revised form: 11 September 2009 / Accepted: 14 September 2009 / Published: 15 September 2009 Show/Hide Abstract | Download PDF Full-text (33 KB) |  Abstract: The regioselective alkylation of an oxonaphthalene-annelated pyrrole system is reported. The regioselectivity of alkylation can be controlled by the selection of the solvent.
	M620 Gytė Vilkauskaitė, Gernot A. Eller, Algirdas Šačkus and Wolfgang Holzer Short Note: 5-Chloro-4-iodo-1,3-dimethyl-1H-pyrazole Molbank 2009, 2009(3), M620; doi:10.3390/M620 Received: 14 September 2009 / Accepted: 18 September 2009 / Published: 21 September 2009 Show/Hide Abstract | Download PDF Full-text (141 KB) |  Abstract: Reaction of 5-chloro-1,3-dimethyl-1H-pyrazole with I2/HIO3 in refluxing acetic acid gives the title compound in good yield. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented.
	M621 Bathey R. Venkatraman and Helen P. Kavitha Short Note: Synthesis of 4-[10H-Phenothiazin-10-yl(1H-tetrazol-5-yl)-methyl]phenol Molbank 2009, 2009(3), M621; doi:10.3390/M621 Received: 3 September 2009 / Accepted: 21 September 2009 / Published: 22 September 2009 Show/Hide Abstract | Download PDF Full-text (23 KB) |  Abstract: This present work aims at synthesizing a novel tetrazole from phenothiazine. Phenothiazine is converted into a nitrile by reacting it with 4-hydroxybenzaldehyde, sodium metabisulphite and sodium cyanide. The nitrile on treatment with NaN3/DMF yielded the corresponding tetrazole. The tetrazole obtained was characterized by IR, 1H NMR, EI-MS and elemental analysis.
	M622 Usha Rawat, Sushma Semwal, Deepak Kumar Semwal, Ruchi Badoni and Amita Bamola Short Note: A New Flavonoid Glycoside from Salix denticulata Aerial Parts Molbank 2009, 2009(3), M622; doi:10.3390/M622 Received: 24 July 2009 / Accepted: 7 September 2009 / Published: 23 September 2009 Show/Hide Abstract | Download PDF Full-text (170 KB) |  Abstract: Abstract: A new flavonoid glycoside (1) has been isolated from the aerial parts of Salix denticulata (Salicaceae) together with five known compounds, β-sitosterol, 2,6-dihydroxy- 4-methoxy acetophenone, eugenol-1-O-β-D-glucopyranoside, 1-O-β-D-(3’-benzoyl) salicyl alcohol and luteolin-7-O-β-D-glucopyranosyl-(1-6)-glucopyranoside. The structure of 1 was elucidated as 2’,5-dihydroxy-3’-methoxyflavone-7-O-β-D-glucopyranoside by means of chemical and spectral data including 2D NMR studies.
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